Two air columns, one open at both ends $\backslash (($A$)\backslash )$ and one closed at one end $\backslash (($B$)\backslash )$ have the same fundamental frequency. If the length of column $\backslash ($ A $\backslash )$ is $0\mathrm{.}61$ m $,$ determine the length of column $\backslash ($ B $\backslash ).$

How is the length of an air column open at both ends related to the resonant wavelengths for that column? How is the length of an air column closed at one end related to the resonant wavelengths for that column? How are the speed, frequency and wavelength of sound related? How is the fundamental frequency for column A related to the fundamental frequency for column B$?$ m